[WATCHDOG] ipmi: add the standard watchdog timeout ioctls

Add the standard IOCTLs to the IPMI driver for setting and getting
the pretimeout. Tested by Benoit Guillon.

Signed off by: Corey Minyard <[e-mail]>
Cc: Benoit Guillon <[e-mail]>
Signed-off-by: Wim Van Sebroeck <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>

drivers/char/ipmi/ipmi_watchdog.c

···
 		return 0;
 
 	case WDIOC_SET_PRETIMEOUT:
+	case WDIOC_SETPRETIMEOUT:
 		i = copy_from_user(&val, argp, sizeof(int));
 		if (i)
 			return -EFAULT;
···
 		return ipmi_set_timeout(IPMI_SET_TIMEOUT_HB_IF_NECESSARY);
 
 	case WDIOC_GET_PRETIMEOUT:
+	case WDIOC_GETPRETIMEOUT:
 		i = copy_to_user(argp, &pretimeout, sizeof(pretimeout));
 		if (i)
 			return -EFAULT;